Comparison of old and modern wheat cultivars with respect to their drought stress reaction
Bachelor Thesis
Research area
Crop science, climate science
Motivation / State of the art / Relevance
As part of the Collaborative Research Centre 1502 (DETECT) we are trying to understand how changes in agricultural management, like changes in grown cultivars, effect land-atmosphere interactions. Changes in cultivars and agricultural management during the last decades have not only led to yield increases, but also changed evaporation, water use and carbon sequestration of arable lands. To account for and implement cultivar changes in the land surface model CLM (https://www.cesm.ucar.edu/models/cesm2/land/), we need more information about the development of shoot and root traits of wheat cultivars throughout the last decades.
Objectives
The objective of this study is to investigate and compare shoot and root traits of modern and old wheat cultivars, as well as their reaction to different drought treatments.
Methodology / Procedure / Workscope / external cooperation
This study includes work on a pot experiment with three wheat cultivars and two watering treatments. Measurements will be done at multiple times during the growth season and have to be analyzed. A will to implement the results into a crop model is welcome, but not required.
Expected results
We expect to see differences in the carbon partitioning and water requirements of modern and old wheat cultivars.
Timeframe
4 Months
Language
English preferred, German possible
Previous knowledge
Interests in crop phenotyping
Supervisor
Dr. Thomas Gaiser, Dominik Behrend
Contact
dbehrend@uni-bonn.de